A handout picture released on February 4, 2015 by Egypt's Middle East News Agency (MENA) shows Egyptian President Abdel Fattah al-Sisi (3rd R) standing alongside members of the air force unit on February 3, 2015 during a surprise visit to their base in the port city of Ismailia, east of Cairo. Al-Sisi said on January 31 the battle against jihadist insurgents in the Sinai Peninsula would be a long and hard one, as violence there continues unabated. AFP PHOTO / HO / MENA == RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / HO / MENA" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS ==